F100
Parameter Checksum
Allen-Bradley · PowerFlex 4 Adjustable Frequency
What does F100 mean?
A checksum error has occurred within the drive's parameter memory, indicating potential corruption or inconsistency in the stored parameter values. This can lead to unpredictable drive behavior.
Common Causes
- Internal parameter data corruption detected.
- EEPROM read/write error.
- Firmware integrity check failed.
- Parameter backup/restore operation incomplete.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Restore all drive parameters to factory defaults, which can often be initiated via a menu option or by setting parameter A100 [Fault Clear] to option 2 ('Clear Buffer').
- 2
After restoring defaults, carefully reprogram all necessary application-specific parameters, ensuring all settings are correct.
Verified technical data. Last updated: March 2026
Related Faults
Source: Allen-Bradley PowerFlex 4 Adjustable Frequency